[Bug tree-optimization/44393] [4.5/4.6 Regression] ICE: verify_ssa failed: no immediate_use list with -Os -ftree-loop-distribution

["rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #7 from rguenth at gcc dot gnu dot org  2010-06-26 15:57 -------
Subject: Bug 44393

Author: rguenth
Date: Sat Jun 26 15:57:17 2010
New Revision: 161435

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161435
Log:
2010-06-26  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/44393
        * tree-loop-distribution.c (generate_loops_for_partition): Fix
        stmt removal and VOP renaming.
        (generate_memset_zero): Remove redundant stmt updating.
        * tree-flow.h (mark_virtual_ops_in_bb): Remove.
        * tree-cfg.c (mark_virtual_ops_in_bb): Likewise.

        * gcc.dg/pr44393.c: New testcase.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/pr44393.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_5-branch/gcc/tree-cfg.c
    branches/gcc-4_5-branch/gcc/tree-flow.h
    branches/gcc-4_5-branch/gcc/tree-loop-distribution.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44393